There are many guides available, telling you how your presentation becomes better; this eBook does exactly the opposite. The eBook “12 ways to ruin your presentation” is an essential guide to provide easy understandable techniques to transform your performance in a real catastrophic event. Not long ago, when delivering a presentation, slides where printed and using an overhead projector, these transparencies where beamed to the wall. IT moved on and in the meantime presentations are created on computers or mobile devices. Some users tend to use these new functions and features to “overload” their output. Sometimes presentations take place, where the subject is of no importance; the question which puzzles the audience is: “what’s next” and this not by matter of subject, but the technical possibilities and gadgets.